243411953 has 2 divisors, whose sum is σ = 243411954. Its totient is φ = 243411952.

The previous prime is 243411943. The next prime is 243411977. The reversal of 243411953 is 359114342.

243411953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208282624 + 35129329 = 14432^2 + 5927^2 .

It is a cyclic number.

It is not a de Polignac number, because 243411953 - 2⁸ = 243411697 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (243411943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121705976 + 121705977.

It is an arithmetic number, because the mean of its divisors is an integer number (121705977).

Almost surely, 2^243411953 is an apocalyptic number.

It is an amenable number.

243411953 is a deficient number, since it is larger than the sum of its proper divisors (1).

243411953 is an equidigital number, since it uses as much as digits as its factorization.

243411953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 32.

The square root of 243411953 is about 15601.6650713954. The cubic root of 243411953 is about 624.3775802489.

The spelling of 243411953 in words is "two hundred forty-three million, four hundred eleven thousand, nine hundred fifty-three".